A321365 Positive integers n such that 13^n == 14 (mod n).

1, 5805311, 392908759, 399614833907, 2674764845549, 21997277871211, 67146783889057

Offset

1,2

Comments

No other terms below 10^15.

Links

Table of n, a(n) for n=1..7.

Prog

(PARI) is(n) = Mod(13, n)^n==14; \\ Felix Fröhlich, Nov 08 2018

Crossrefs

Solutions to 13^n == k (mod n): A001022 (k=0), A015963 (k=-1), A116621 (k=1), A116622 (k=2), A116629 (k=3), A116630 (k=4), A116611 (k=5), A116631 (k=6), A116632 (k=7), A295532 (k=8), A116636 (k=9), A116620(k=10), A116638 (k=11), A321364 (k=12), this sequence (k=14), A116639 (k=15).

Cf. A116609, A127821, A128149, A128172.

Sequence in context: A235983 A203931 A309835 * A335255 A250503 A268333

Adjacent sequences: A321362 A321363 A321364 * A321366 A321367 A321368

Keyword

nonn,more

Author

Max Alekseyev, Nov 08 2018

Status

approved